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DIR:OUT; SFP:1102; X-OriginatorOrg: HCL.COM X-MS-Exchange-CrossTenant-OriginalArrivalTime: 07 Oct 2020 17:18:09.3353 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 7a7a2e52-1e32-44a0-648a-08d86ae4f6ec X-MS-Exchange-CrossTenant-Id: 189de737-c93a-4f5a-8b68-6f4ca9941912 X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=189de737-c93a-4f5a-8b68-6f4ca9941912; Ip=[192.8.245.53]; Helo=[APC01-PU1-obe.outbound.protection.outlook.com] X-MS-Exchange-CrossTenant-AuthSource: PU1APC01FT049.eop-APC01.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: TY2PR04MB2637 X-BeenThere: openbmc@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Development list for OpenBMC List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "openbmc@lists.ozlabs.org" , Patrick Williams Errors-To: openbmc-bounces+openbmc=archiver.kernel.org@lists.ozlabs.org Sender: "openbmc" Classification: HCL Internal Time owner module was a different module which decides who owns the time BM= C/host and set the time using NTP mode or Manual Mode. in Time owner module ,user set the host time using the below command manual= ly by providing the time. busctl set-property xyz.openbmc_project.Time.Manager \ /xyz/openbmc_project/time/host xyz.openbmc_project.Time.EpochTime \ Elapsed t we are now actually not repeating the time owner implementation instead we = are adding one more mode(HostSync) to time manager setting. a.NTP b.Manual c.HostSync How HostSync intent to work: 1.host sync mode will get time from the host. 1.1 Add an empty system service file in this repo and sp= awn this service when HostSync enabled 1.2 This service file can be override by the platform ma= chine layer. 1.3 The platform machine layer install the service file = and the shell script to get the time from host. 2.it will set the time to BMC using the shell script. Regards, Velu -----Original Message----- From: Patrick Williams Sent: Wednesday, October 7, 2020 7:08 AM To: Richard Hanley Cc: Velumani T-ERS,HCLTech ; openbmc@lists.ozlabs.org; P= atrick Williams Subject: Re: adding sync method in phosphor-time-manager On Tue, Oct 06, 2020 at 02:41:29PM -0700, Richard Hanley wrote: > While we're on the subject, has anyone ever taken a look at using > roughtime on a BMC? I imagine it could a really valuable extension to > phosphor-time-manager some time in the future. > https://blog.cloudflare.com/roughtime/ One of the problems I see is that there are a few different proposals for "= next generation time" protocols beyond NTP. Unless a project member has an= explicit requirement for one of them, it doesn't seem like we should go ou= t of our way to pick one of them. If someone is especially interested in i= mplementing one of them in their spare time though, they're more than welco= me. -- Patrick Williams ::DISCLAIMER:: ________________________________ The contents of this e-mail and any attachment(s) are confidential and inte= nded for the named recipient(s) only. E-mail transmission is not guaranteed= to be secure or error-free as information could be intercepted, corrupted,= lost, destroyed, arrive late or incomplete, or may contain viruses in tran= smission. The e mail and its contents (with or without referred errors) sha= ll therefore not attach any liability on the originator or HCL or its affil= iates. Views or opinions, if any, presented in this email are solely those = of the author and may not necessarily reflect the views or opinions of HCL = or its affiliates. Any form of reproduction, dissemination, copying, disclo= sure, modification, distribution and / or publication of this message witho= ut the prior written consent of authorized representative of HCL is strictl= y prohibited. If you have received this email in error please delete it and= notify the sender immediately. Before opening any email and/or attachments= , please check them for viruses and other defects. ________________________________